upson



(Model.)

w. L. UPsoN.

ALARM CLOCK MOVEMENT.

Patentedjlg y, 188.2.

UNITED STATES PATENT OFFICE.'

VALDOL. UPSON, OF MERIDEN, CONNECTICUT, ASSIGNOR TO BRADLEY St HUBBARDMANUFACTURING COMPANY, OF SAME PLACE.

ALARM-CLOCK MOVEMENT.

SPECIFICATION forming part of Letters Patent No. 267,619, dated November14, 1882.

Applicntion'filed December 19, 1881. (Model.)

To all whom, it may concern: l either shaft C or F may be turned to windits Beitknown thatLWALDOL.UPsoN,ofMeri respective spring independent ofthe other, 55

den, in the county of New Haven and State of and the two heilig on thesame shaft occupy Connecticut, have invented a new Improveno more spaceas to width and height than ment in Ciock-Movements; and l do herebyeither would without the-other.

declare the following, when taken in eonnec- The train of gearingbetween the main timetion with the accompanying drawings and the wheel Dand the pointers is of the usual ar- 6o letters of reference markedthereon, to be a rangement, and needs no further description full,clear, and exact description of the same, than to say that L is thecenter shaft upon io and which said drawings constitute part ofwhichthepointers arearranged. On this shaft,

this specification, and represent, in in rear of the time-wheels, is asleeve or hollow Figure l, a front view; Fig. 2, a rear view, shaft, d,loose on the said shaft, or so that one 65 Fig. 3, a sectional sideview. may revolve independent of the other. This This invention relatesto an improvement in hollow shaft (l is provided with a pinion, e,

that class of clock-movements which have an into which the main wheel Gof the alarm alarm device combined with the time, the obworks, so as toimpart to that shaft the revoject being to providean independent springfor lution given to the main wheel by the spring; 7o the alarm, and theapplication ot' power to the also, on the hollow shaft d is theverge-wheel hammer within the space occupied by the j', working into theverge 7L on the hammero time-movement; and it consists,1st,in thearshaft t', as seen in Fig. 2. NVith the pinion c rangement ofthe mainwheel for the alarm on and vergewheel f thus arranged upon the a tubularshaft on the shaft of the main wheel, center shaft, they occupy noadditional space 75 the shaftof the main wheel extending through overwhat is required for the time-movement. the tubular shaft of thealarm-wheel, so that The hammer-shaft is applied within the space theshaft on the main wheel may be turned to of the time-movement, so that,in fact, the adwind the spring of that wheel through theditionofthealarm,withitsindependent spring. tubular shaft of thealarm-wheel; second, in is made with no greater width and height of 8othe arrangement of the verge-wheel, which opthe movement than would berequired were era'tes the hammer, loose on the center shaft; the alarmnot pre-sent.'

3o third, in the arrangement of the setting-shaft m is the set-tingcam-shaft, which passes through the time-pinions, all as more fullyherethrough the time-pinions a, so that the shaft inaftcr described.becomes the center or bearing on which the 85 A represents the front andB the rear plates time-pinions a revolve, these pinions a beingI ofthemovement, secured togetherinthe usual the same as usually employedbetween the manner. C is the main shaft, upon which is hour and minutepinions on the center shaft the main driving-wheel D, provided with theto communicateA the di'erential revolution to usual spring, E, the outerend ofthe main shaft the hour and minute hands. The shaft m is 9o Cconstructed of polygonal shape, as at a, or provided at its front endwith a pinion, l, otherwise, for the application of the windingworkinginto the hour-pinion s on the center 4o kel;r thereto, so that byturning the shaft the shaft, so that the rotation of the hour-hand isspring will be wound in the usual manner. imparted to the shaft on. Thisshaft extends O11 the main shaft C is a tubular shaft, F, through themovement to the rear, and is there 95 which takes its bearing in therear plate, and provided with thel setting-cam t, with which extendsoutward around the main shaft. On an arm, a, from the hammer-shaftengages unthis tubular shaft F is the main alarm-wheel til the fall-olon the cani permits the arm from Gr, provided wit-h its independentspring H, the hammer-shaft to escape. Thus the alarm one end ot' whichis attached to the tubular is sounded. This cam is adjusted by turningroo shaftFandthe other to the wheel G,in the usual it upon its shaftinthe usual manner, the dial manner.- The outer end of the tubular shaftthereon indicating the position of the cam in 5o F is fitted with ahollow key, I, by which the the usual manner. This tripping mechanism,shaft F may be turned to wind the spring, the being concentric with thetime-pinions, also shaft provided with the usual pawl and ratchet comeswithin the space required for the timeto hold the spring, as seen inFig. 2. Thus movement. This concentric arrangement of the twoindependent springs may be employed in the time and striking movement aswell as in time and alarm. I therefore do not wish to confine this partof my invention to an alarm mechanism.

It is not essential that the verge-wheel and its pinion should bearranged concentric with the center shaft7 as they may be otherwisearranged and yet preserve the main wheel concentricwiththetimemainwheel.li'lyinvention is therefore not to be limited to the combinedarrangement of the main wheel and the verge- Wheel or setting-shaft.

I am aware that two independent wheels have been arranged upon the sameshaft, each to have a movement independent of the other, and thereforedo not broadly claim such construction or arrangement; but

l. The combination of the main time-Wheel, its shalt and spring7 with asecond and main wheel and its independent spring', arranged upon theshaft of the main wheel, with a tubular extension or shaft from thesaidsecond main wheel, outward and around the shaft of the main time-Wheel,by which said tubular extension the spring` of thel second main wheelmay be Wound, leaving the main shaft eX- posed to Wind the time-spring7substantially as described.

2. The combinaion of the verge-wheel of the alarm and its pinion,arranged and loose upon the center shaft of the time part, withmechanism, substantially such as described7 to impart revolution to theverge-wheel independent of the center-shaft, substantially as described.

3. In a combined alarm and time movement, the combination of thesetting-shaft m, arranged concentrically through the pinions a, whichconnects the hour and minute pinions on the center shaft with the pinion1' on said setting-shaft, in connection with the hourpinion s on thecenter shaft, substantially as described.

4. In acombined alarm and time movement,

the combination of the alarm main wheel and its independent spring,arranged concentric with and loosely upon the main shaft of the timepart, the said alarm main wheel contructed with a tubular shaftextendingoutward and around the main shaft, whereby either springmaybeWound independent ofthe other, with the alarmverge and its pinionarranged concentric and loosely upon the center shaft of thetime-movement, substantially as described.

WALDo L. UrsoN.A

Witnesses:

T. J. SEIDENSTICKER, U. P. BRADLEY.

